mirror of
https://gitee.com/acl-dev/acl.git
synced 2024-12-15 09:20:52 +08:00
129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
|
|
#ifndef _XOPEN_SOURCE
|
|
#define _XOPEN_SOURCE
|
|
#endif
|
|
|
|
#define NO_CPP_DEMANGLE
|
|
|
|
#include <memory.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <signal.h>
|
|
#include <ucontext.h>
|
|
#include <dlfcn.h>
|
|
#include <execinfo.h>
|
|
#ifndef NO_CPP_DEMANGLE
|
|
#include <cxxabi.h>
|
|
#endif
|
|
#include "sigsegv.h"
|
|
|
|
#if defined(REG_RIP)
|
|
# define SIGSEGV_STACK_IA64
|
|
# define REGFORMAT "%016lx"
|
|
#elif defined(REG_EIP)
|
|
# define SIGSEGV_STACK_X86
|
|
# define REGFORMAT "%08x"
|
|
#else
|
|
# define SIGSEGV_STACK_GENERIC
|
|
# define REGFORMAT "%x"
|
|
#endif
|
|
|
|
static void signal_segv(int signum, siginfo_t* info, void*ptr)
|
|
{
|
|
static const char *si_codes[3] = {"", "SEGV_MAPERR", "SEGV_ACCERR"};
|
|
|
|
size_t i;
|
|
ucontext_t *ucontext = (ucontext_t*)ptr;
|
|
|
|
#if defined(SIGSEGV_STACK_X86) || defined(SIGSEGV_STACK_IA64)
|
|
int f = 0;
|
|
Dl_info di;
|
|
void **bp = 0;
|
|
void *ip = 0;
|
|
#else
|
|
void *bt[20];
|
|
char **strings;
|
|
size_t sz;
|
|
#endif
|
|
|
|
fprintf(stderr, "Segmentation Fault!\n");
|
|
fprintf(stderr, "info.si_signo = %d\n", signum);
|
|
fprintf(stderr, "info.si_errno = %d\n", info->si_errno);
|
|
fprintf(stderr, "info.si_code = %d (%s)\n", info->si_code,
|
|
si_codes[info->si_code]);
|
|
fprintf(stderr, "info.si_addr = %p\n", info->si_addr);
|
|
for(i = 0; i < NGREG; i++)
|
|
fprintf(stderr, "reg[%02d] = 0x" REGFORMAT "\n",
|
|
(int) i, (unsigned long) ucontext->uc_mcontext.gregs[i]);
|
|
|
|
#if defined(SIGSEGV_STACK_X86) || defined(SIGSEGV_STACK_IA64)
|
|
# if defined(SIGSEGV_STACK_IA64)
|
|
ip = (void*)ucontext->uc_mcontext.gregs[REG_RIP];
|
|
bp = (void**)ucontext->uc_mcontext.gregs[REG_RBP];
|
|
# elif defined(SIGSEGV_STACK_X86)
|
|
ip = (void*)ucontext->uc_mcontext.gregs[REG_EIP];
|
|
bp = (void**)ucontext->uc_mcontext.gregs[REG_EBP];
|
|
# endif
|
|
|
|
fprintf(stderr, "Stack trace:\n");
|
|
while(bp && ip) {
|
|
const char *symname;
|
|
if(!dladdr(ip, &di))
|
|
break;
|
|
|
|
symname = di.dli_sname;
|
|
#ifndef NO_CPP_DEMANGLE
|
|
int status;
|
|
char *tmp = __cxa_demangle(symname, NULL, 0, &status);
|
|
|
|
if(status == 0 && tmp)
|
|
symname = tmp;
|
|
#endif
|
|
|
|
fprintf(stderr, "%2d: %p <%s+%u> (%s)\n",
|
|
++f,
|
|
ip,
|
|
symname,
|
|
(unsigned)(((char*) ip) - ((char*) di.dli_saddr)),
|
|
di.dli_fname);
|
|
|
|
#ifndef NO_CPP_DEMANGLE
|
|
if(tmp)
|
|
free(tmp);
|
|
#endif
|
|
|
|
if(di.dli_sname && !strcmp(di.dli_sname, "main"))
|
|
break;
|
|
|
|
ip = bp[1];
|
|
bp = (void**)bp[0];
|
|
}
|
|
#else
|
|
fprintf(stderr, "Stack trace (non-dedicated):\n");
|
|
sz = backtrace(bt, 20);
|
|
strings = backtrace_symbols(bt, sz);
|
|
|
|
for(i = 0; i < sz; ++i)
|
|
fprintf(stderr, "%s\n", strings[i]);
|
|
#endif
|
|
fprintf(stderr, "End of stack trace\n");
|
|
exit (-1);
|
|
}
|
|
|
|
int setup_sigsegv()
|
|
{
|
|
struct sigaction action;
|
|
memset(&action, 0, sizeof(action));
|
|
action.sa_sigaction = signal_segv;
|
|
action.sa_flags = SA_SIGINFO;
|
|
if(sigaction(SIGSEGV, &action, NULL) < 0) {
|
|
perror("sigaction");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|